低位放顶煤综采工作面瓦斯防治

The prevention and control of gas in longwall face with lower position roof coal drawing

针对潞安矿务局五阳煤矿出现的综采低位放顶煤工作面瓦斯超限问题，采用了“ｈ”型通风治理措施，安全、快速、经济地解决了综放工作面的瓦斯超限问题。从另外一条途径提出了治理综放工作面瓦斯超限的新思路，对综放工作面瓦斯管理是一种有益的尝试。

Gas beyond limitation in longwall face with lower position roof coal drawing is a common and serious problem.The problem is solved safely,rapidly and economically by taking measures of “h” pattern ventilation.This is a useful try for gas control and management in longwall face with roof coal drawing.